01 Record
CVE-2017-7539
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the
MediumPUBLISHEDCNA: redhat
CNA base score5.3 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 5.45% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 92.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-07-26 14:00Z8 YR AGO
- Last updated
- 2024-08-05 16:04Z2 YR AGO
- Reserved
- 2017-04-05
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- Data version
- 5.1
- Document digest
- 9cce14d2bc736187e8aab37d004f4ab7c14e9fbc485f76e92561f769586e5cde
05 Affected products
VendorProductVersionsPlatforms
06 References
- access.redhat.comRHSA-2017:2628https://access.redhat.com/errata/RHSA-2017:2628
- git.qemu.orghttps://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
- access.redhat.comRHSA-2017:3473https://access.redhat.com/errata/RHSA-2017:3473
- access.redhat.comRHSA-2017:3470https://access.redhat.com/errata/RHSA-2017:3470
- access.redhat.comRHSA-2017:3472https://access.redhat.com/errata/RHSA-2017:3472
- access.redhat.comRHSA-2017:3474https://access.redhat.com/errata/RHSA-2017:3474
- access.redhat.comRHSA-2017:3471https://access.redhat.com/errata/RHSA-2017:3471
- git.qemu.orghttps://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19
- www.openwall.com[oss-security] 20170721 CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutinehttp://www.openwall.com/lists/oss-security/2017/07/21/4
- access.redhat.comRHSA-2017:3466https://access.redhat.com/errata/RHSA-2017:3466
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539
- www.securityfocus.com99944http://www.securityfocus.com/bid/99944